GuestDnDSourceImpl.cpp@ 55535

最後變更在這個檔案從55535是 55525,由 vboxsync 提交於 10 年前
DnD: Handle receiving 0-byte files, only do workaround accounting on root URI objects.
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1	/* $Id: GuestDnDSourceImpl.cpp 55525 2015-04-29 15:21:19Z vboxsync $ */
2	/** @file
3	* VBox Console COM Class implementation - Guest drag and drop source.
4	*/
5
6	/*
7	* Copyright (C) 2014-2015 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.alldomusa.eu.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19	/*******************************************************************************
20	* Header Files *
21	*******************************************************************************/
22	#include "GuestImpl.h"
23	#include "GuestDnDSourceImpl.h"
24	#include "GuestDnDPrivate.h"
25
26	#include "Global.h"
27	#include "AutoCaller.h"
28
29	#include <iprt/dir.h>
30	#include <iprt/file.h>
31	#include <iprt/path.h>
32	#include <iprt/uri.h>
33
34	#include <iprt/cpp/utils.h> /* For unconst(). */
35
36	#include <VBox/com/array.h>
37	#include <VBox/GuestHost/DragAndDrop.h>
38	#include <VBox/HostServices/DragAndDropSvc.h>
39
40	#ifdef LOG_GROUP
41	#undef LOG_GROUP
42	#endif
43	#define LOG_GROUP LOG_GROUP_GUEST_DND
44	#include <VBox/log.h>
45
46	/**
47	* Base class for a source task.
48	*/
49	class GuestDnDSourceTask
50	{
51	public:
52
53	GuestDnDSourceTask(GuestDnDSource *pSource)
54	: mSource(pSource),
55	mRC(VINF_SUCCESS) { }
56
57	virtual ~GuestDnDSourceTask(void) { }
58
59	int getRC(void) const { return mRC; }
60	bool isOk(void) const { return RT_SUCCESS(mRC); }
61	const ComObjPtr<GuestDnDSource> &getSource(void) const { return mSource; }
62
63	protected:
64
65	const ComObjPtr<GuestDnDSource> mSource;
66	int mRC;
67	};
68
69	/**
70	* Task structure for receiving data from a source using
71	* a worker thread.
72	*/
73	class RecvDataTask : public GuestDnDSourceTask
74	{
75	public:
76
77	RecvDataTask(GuestDnDSource *pSource, PRECVDATACTX pCtx)
78	: GuestDnDSourceTask(pSource)
79	, mpCtx(pCtx) { }
80
81	virtual ~RecvDataTask(void) { }
82
83	PRECVDATACTX getCtx(void) { return mpCtx; }
84
85	protected:
86
87	/** Pointer to receive data context. */
88	PRECVDATACTX mpCtx;
89	};
90
91	// constructor / destructor
92	/////////////////////////////////////////////////////////////////////////////
93
94	DEFINE_EMPTY_CTOR_DTOR(GuestDnDSource)
95
96	HRESULT GuestDnDSource::FinalConstruct(void)
97	{
98	/* Set the maximum block size this source can handle to 64K. This always has
99	* been hardcoded until now. */
100	/* Note: Never ever rely on information from the guest; the host dictates what and
101	* how to do something, so try to negogiate a sensible value here later. */
102	mData.mcbBlockSize = _64K; /** @todo Make this configurable. */
103	mData.mfDropIsPending = false;
104
105	LogFlowThisFunc(("\n"));
106	return BaseFinalConstruct();
107	}
108
109	void GuestDnDSource::FinalRelease(void)
110	{
111	LogFlowThisFuncEnter();
112	uninit();
113	BaseFinalRelease();
114	LogFlowThisFuncLeave();
115	}
116
117	// public initializer/uninitializer for internal purposes only
118	/////////////////////////////////////////////////////////////////////////////
119
120	int GuestDnDSource::init(const ComObjPtr<Guest>& pGuest)
121	{
122	LogFlowThisFuncEnter();
123
124	/* Enclose the state transition NotReady->InInit->Ready. */
125	AutoInitSpan autoInitSpan(this);
126	AssertReturn(autoInitSpan.isOk(), E_FAIL);
127
128	unconst(m_pGuest) = pGuest;
129
130	/* Confirm a successful initialization when it's the case. */
131	autoInitSpan.setSucceeded();
132
133	return VINF_SUCCESS;
134	}
135
136	/**
137	* Uninitializes the instance.
138	* Called from FinalRelease().
139	*/
140	void GuestDnDSource::uninit(void)
141	{
142	LogFlowThisFunc(("\n"));
143
144	/* Enclose the state transition Ready->InUninit->NotReady. */
145	AutoUninitSpan autoUninitSpan(this);
146	if (autoUninitSpan.uninitDone())
147	return;
148	}
149
150	// implementation of wrapped IDnDBase methods.
151	/////////////////////////////////////////////////////////////////////////////
152
153	HRESULT GuestDnDSource::isFormatSupported(const com::Utf8Str &aFormat, BOOL *aSupported)
154	{
155	#if !defined(VBOX_WITH_DRAG_AND_DROP) \|\| !defined(VBOX_WITH_DRAG_AND_DROP_GH)
156	ReturnComNotImplemented();
157	#else /* VBOX_WITH_DRAG_AND_DROP */
158
159	AutoCaller autoCaller(this);
160	if (FAILED(autoCaller.rc())) return autoCaller.rc();
161
162	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
163
164	return GuestDnDBase::i_isFormatSupported(aFormat, aSupported);
165	#endif /* VBOX_WITH_DRAG_AND_DROP */
166	}
167
168	HRESULT GuestDnDSource::getFormats(std::vector<com::Utf8Str> &aFormats)
169	{
170	#if !defined(VBOX_WITH_DRAG_AND_DROP) \|\| !defined(VBOX_WITH_DRAG_AND_DROP_GH)
171	ReturnComNotImplemented();
172	#else /* VBOX_WITH_DRAG_AND_DROP */
173
174	AutoCaller autoCaller(this);
175	if (FAILED(autoCaller.rc())) return autoCaller.rc();
176
177	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
178
179	return GuestDnDBase::i_getFormats(aFormats);
180	#endif /* VBOX_WITH_DRAG_AND_DROP */
181	}
182
183	HRESULT GuestDnDSource::addFormats(const std::vector<com::Utf8Str> &aFormats)
184	{
185	#if !defined(VBOX_WITH_DRAG_AND_DROP) \|\| !defined(VBOX_WITH_DRAG_AND_DROP_GH)
186	ReturnComNotImplemented();
187	#else /* VBOX_WITH_DRAG_AND_DROP */
188
189	AutoCaller autoCaller(this);
190	if (FAILED(autoCaller.rc())) return autoCaller.rc();
191
192	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
193
194	return GuestDnDBase::i_addFormats(aFormats);
195	#endif /* VBOX_WITH_DRAG_AND_DROP */
196	}
197
198	HRESULT GuestDnDSource::removeFormats(const std::vector<com::Utf8Str> &aFormats)
199	{
200	#if !defined(VBOX_WITH_DRAG_AND_DROP) \|\| !defined(VBOX_WITH_DRAG_AND_DROP_GH)
201	ReturnComNotImplemented();
202	#else /* VBOX_WITH_DRAG_AND_DROP */
203
204	AutoCaller autoCaller(this);
205	if (FAILED(autoCaller.rc())) return autoCaller.rc();
206
207	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
208
209	return GuestDnDBase::i_removeFormats(aFormats);
210	#endif /* VBOX_WITH_DRAG_AND_DROP */
211	}
212
213	HRESULT GuestDnDSource::getProtocolVersion(ULONG *aProtocolVersion)
214	{
215	#if !defined(VBOX_WITH_DRAG_AND_DROP)
216	ReturnComNotImplemented();
217	#else /* VBOX_WITH_DRAG_AND_DROP */
218
219	AutoCaller autoCaller(this);
220	if (FAILED(autoCaller.rc())) return autoCaller.rc();
221
222	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
223
224	return GuestDnDBase::i_getProtocolVersion(aProtocolVersion);
225	#endif /* VBOX_WITH_DRAG_AND_DROP */
226	}
227
228	// implementation of wrapped IDnDTarget methods.
229	/////////////////////////////////////////////////////////////////////////////
230
231	HRESULT GuestDnDSource::dragIsPending(ULONG uScreenId,
232	std::vector<com::Utf8Str> &aFormats,
233	std::vector<DnDAction_T> &aAllowedActions,
234	DnDAction_T *aDefaultAction)
235	{
236	#if !defined(VBOX_WITH_DRAG_AND_DROP) \|\| !defined(VBOX_WITH_DRAG_AND_DROP_GH)
237	ReturnComNotImplemented();
238	#else /* VBOX_WITH_DRAG_AND_DROP */
239
240	AutoCaller autoCaller(this);
241	if (FAILED(autoCaller.rc())) return autoCaller.rc();
242
243	/* Determine guest DnD protocol to use. */
244	GuestDnDBase::getProtocolVersion(&mDataBase.mProtocolVersion);
245
246	/* Default is ignoring the action. */
247	DnDAction_T defaultAction = DnDAction_Ignore;
248
249	HRESULT hr = S_OK;
250
251	GuestDnDMsg Msg;
252	Msg.setType(DragAndDropSvc::HOST_DND_GH_REQ_PENDING);
253	Msg.setNextUInt32(uScreenId);
254
255	int rc = GuestDnDInst()->hostCall(Msg.getType(), Msg.getCount(), Msg.getParms());
256	if (RT_SUCCESS(rc))
257	{
258	bool fFetchResult = true;
259	GuestDnDResponse *pResp = GuestDnDInst()->response();
260	if (pResp)
261	{
262	if (pResp->waitForGuestResponse() == VERR_TIMEOUT)
263	fFetchResult = false;
264
265	if (isDnDIgnoreAction(pResp->defAction()))
266	fFetchResult = false;
267
268	/* Fetch the default action to use. */
269	if (fFetchResult)
270	{
271	defaultAction = GuestDnD::toMainAction(pResp->defAction());
272
273	GuestDnD::toFormatVector(m_strFormats, pResp->format(), aFormats);
274	GuestDnD::toMainActions(pResp->allActions(), aAllowedActions);
275	}
276	}
277
278	if (aDefaultAction)
279	*aDefaultAction = defaultAction;
280	}
281
282	if (RT_FAILURE(rc))
283	hr = setError(VBOX_E_IPRT_ERROR,
284	tr("Error retrieving drag'n drop pending status (%Rrc)\n"), rc);
285
286	LogFlowFunc(("hr=%Rhrc, defaultAction=0x%x\n", hr, defaultAction));
287	return hr;
288	#endif /* VBOX_WITH_DRAG_AND_DROP */
289	}
290
291	HRESULT GuestDnDSource::drop(const com::Utf8Str &aFormat,
292	DnDAction_T aAction, ComPtr<IProgress> &aProgress)
293	{
294	#if !defined(VBOX_WITH_DRAG_AND_DROP) \|\| !defined(VBOX_WITH_DRAG_AND_DROP_GH)
295	ReturnComNotImplemented();
296	#else /* VBOX_WITH_DRAG_AND_DROP */
297
298	/* Input validation. */
299	if (RT_UNLIKELY((aFormat.c_str()) == NULL \|\| *(aFormat.c_str()) == '\0'))
300	return setError(E_INVALIDARG, tr("No drop format specified"));
301
302	AutoCaller autoCaller(this);
303	if (FAILED(autoCaller.rc())) return autoCaller.rc();
304
305	uint32_t uAction = GuestDnD::toHGCMAction(aAction);
306	/* If there is no usable action, ignore this request. */
307	if (isDnDIgnoreAction(uAction))
308	return S_OK;
309
310	if (ASMAtomicReadBool(&mData.mfDropIsPending))
311	return setError(E_INVALIDARG, tr("Another drop operation already is in progress"));
312
313	ASMAtomicWriteBool(&mData.mfDropIsPending, true);
314
315	HRESULT hr = S_OK;
316
317	/* Note: At the moment we only support one response at a time. */
318	GuestDnDResponse *pResp = GuestDnDInst()->response();
319	if (pResp)
320	{
321	pResp->resetProgress(m_pGuest);
322
323	int rc;
324
325	try
326	{
327	mData.mRecvCtx.mpSource = this;
328	mData.mRecvCtx.mpResp = pResp;
329	mData.mRecvCtx.mFormat = aFormat;
330
331	RecvDataTask *pTask = new RecvDataTask(this, &mData.mRecvCtx);
332	AssertReturn(pTask->isOk(), pTask->getRC());
333
334	rc = RTThreadCreate(NULL, GuestDnDSource::i_receiveDataThread,
335	(void *)pTask, 0, RTTHREADTYPE_MAIN_WORKER, 0, "dndSrcRcvData");
336	if (RT_SUCCESS(rc))
337	{
338	hr = pResp->queryProgressTo(aProgress.asOutParam());
339	ComAssertComRC(hr);
340
341	/* Note: pTask is now owned by the worker thread. */
342	}
343	}
344	catch(std::bad_alloc &)
345	{
346	rc = VERR_NO_MEMORY;
347	}
348
349	/if (RT_FAILURE(vrc)) @todo SetError(...) /
350	}
351	/** @todo SetError(...) */
352
353	ASMAtomicWriteBool(&mData.mfDropIsPending, false);
354
355	LogFlowFunc(("Returning hr=%Rhrc\n", hr));
356	return hr;
357	#endif /* VBOX_WITH_DRAG_AND_DROP */
358	}
359
360	HRESULT GuestDnDSource::receiveData(std::vector<BYTE> &aData)
361	{
362	#if !defined(VBOX_WITH_DRAG_AND_DROP) \|\| !defined(VBOX_WITH_DRAG_AND_DROP_GH)
363	ReturnComNotImplemented();
364	#else /* VBOX_WITH_DRAG_AND_DROP */
365
366	/* Input validation. */
367
368	AutoCaller autoCaller(this);
369	if (FAILED(autoCaller.rc())) return autoCaller.rc();
370
371	if (ASMAtomicReadBool(&mData.mfDropIsPending))
372	return setError(E_INVALIDARG, tr("Current drop operation still running"));
373
374	PRECVDATACTX pCtx = &mData.mRecvCtx;
375
376	if (pCtx->mData.vecData.empty())
377	{
378	aData.resize(0);
379	return S_OK;
380	}
381
382	HRESULT hr = S_OK;
383	size_t cbData;
384
385	try
386	{
387	bool fHasURIList = DnDMIMENeedsDropDir(pCtx->mFormat.c_str(), pCtx->mFormat.length());
388	if (fHasURIList)
389	{
390	Utf8Str strURIs = pCtx->mURI.lstURI.RootToString(pCtx->mURI.strDropDir);
391	cbData = strURIs.length();
392
393	LogFlowFunc(("Found %zu root URIs (%zu bytes)\n", pCtx->mURI.lstURI.RootCount(), cbData));
394
395	aData.resize(cbData + 1 /* Include termination */);
396	memcpy(&aData.front(), strURIs.c_str(), cbData);
397	}
398	else
399	{
400	cbData = pCtx->mData.vecData.size();
401
402	/* Copy the data into a safe array of bytes. */
403	aData.resize(cbData);
404	memcpy(&aData.front(), &pCtx->mData.vecData[0], cbData);
405	}
406	}
407	catch (std::bad_alloc &)
408	{
409	hr = E_OUTOFMEMORY;
410	}
411
412	LogFlowFunc(("Returning cbData=%zu, hr=%Rhrc\n", cbData, hr));
413	return hr;
414	#endif /* VBOX_WITH_DRAG_AND_DROP */
415	}
416
417	// implementation of internal methods.
418	/////////////////////////////////////////////////////////////////////////////
419
420	#ifdef VBOX_WITH_DRAG_AND_DROP_GH
421	int GuestDnDSource::i_onReceiveData(PRECVDATACTX pCtx, const void *pvData, uint32_t cbData, uint64_t cbTotalSize)
422	{
423	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
424	AssertPtrReturn(pvData, VERR_INVALID_POINTER);
425	AssertReturn(cbData, VERR_INVALID_PARAMETER);
426	AssertReturn(cbTotalSize, VERR_INVALID_PARAMETER);
427
428	LogFlowFunc(("cbData=%RU32, cbTotalSize=%RU64\n", cbData, cbTotalSize));
429
430	int rc = VINF_SUCCESS;
431
432	try
433	{
434	if ( cbData > cbTotalSize
435	\|\| cbData > mData.mcbBlockSize)
436	{
437	LogFlowFunc(("Data sizes invalid: cbData=%RU32, cbTotalSize=%RU64\n", cbData, cbTotalSize));
438	rc = VERR_INVALID_PARAMETER;
439	}
440	else if (cbData < pCtx->mData.vecData.size())
441	{
442	AssertMsgFailed(("New size (%RU64) is smaller than current size (%zu)\n", cbTotalSize, pCtx->mData.vecData.size()));
443	rc = VERR_INVALID_PARAMETER;
444	}
445
446	if (RT_SUCCESS(rc))
447	{
448	pCtx->mData.vecData.insert(pCtx->mData.vecData.begin(), (BYTE )pvData, (BYTE )pvData + cbData);
449
450	LogFlowFunc(("vecDataSize=%zu, cbData=%RU32, cbTotalSize=%RU64\n", pCtx->mData.vecData.size(), cbData, cbTotalSize));
451
452	/* Data transfer complete? */
453	Assert(cbData <= pCtx->mData.vecData.size());
454	if (cbData == pCtx->mData.vecData.size())
455	{
456	bool fHasURIList = DnDMIMENeedsDropDir(pCtx->mFormat.c_str(), pCtx->mFormat.length());
457	LogFlowFunc(("fHasURIList=%RTbool, cbTotalSize=%RU32\n", fHasURIList, cbTotalSize));
458	if (fHasURIList)
459	{
460	/* Try parsing the data as URI list. */
461	rc = pCtx->mURI.lstURI.RootFromURIData(&pCtx->mData.vecData[0], pCtx->mData.vecData.size(), 0 /* uFlags */);
462	if (RT_SUCCESS(rc))
463	{
464	pCtx->mData.cbProcessed = 0;
465
466	/*
467	* Assign new total size which also includes all file data to receive
468	* from the guest.
469	*/
470	pCtx->mData.cbToProcess = cbTotalSize;
471
472	LogFlowFunc(("URI data => cbToProcess=%RU64\n", pCtx->mData.cbToProcess));
473	}
474	}
475	}
476	}
477	}
478	catch (std::bad_alloc &)
479	{
480	rc = VERR_NO_MEMORY;
481	}
482
483	LogFlowFuncLeaveRC(rc);
484	return rc;
485	}
486
487	int GuestDnDSource::i_onReceiveDir(PRECVDATACTX pCtx, const char *pszPath, uint32_t cbPath, uint32_t fMode)
488	{
489	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
490	AssertPtrReturn(pszPath, VERR_INVALID_POINTER);
491	AssertReturn(cbPath, VERR_INVALID_PARAMETER);
492
493	LogFlowFunc(("pszPath=%s, cbPath=%RU32, fMode=0x%x\n", pszPath, cbPath, fMode));
494
495	int rc;
496	char *pszDir = RTPathJoinA(pCtx->mURI.strDropDir.c_str(), pszPath);
497	if (pszDir)
498	{
499	rc = RTDirCreateFullPath(pszDir, fMode);
500	if (RT_FAILURE(rc))
501	LogRel2(("DnD: Error creating guest directory \"%s\" on the host, rc=%Rrc\n", pszDir, rc));
502
503	RTStrFree(pszDir);
504	}
505	else
506	rc = VERR_NO_MEMORY;
507
508	if (RT_SUCCESS(rc))
509	{
510	if (mDataBase.mProtocolVersion <= 2)
511	{
512	/*
513	* BUG: Protocol v1 does not send root directory names in URI format,
514	* however, if this is a root URI directory (which came with the initial
515	* GUEST_DND_GH_SND_DATA message(s)) the total data announced was for
516	* root directory names which came in URI format, as an URI list.
517	*
518	* So construct an URI path locally to keep the accounting right.
519	*/
520	char pszPathURI = RTUriCreate("file" / pszScheme /, "/" / pszAuthority */,
521	pszPath /* pszPath */,
522	NULL /* pszQuery /, NULL / pszFragment */);
523	if (pszPathURI)
524	{
525	bool fHasPath = RTPathHasPath(pszPath); /* Use original data received. */
526	if (!fHasPath) /* Root path? */
527	{
528	cbPath = strlen(pszPathURI);
529	cbPath += 3; /* Include "\r" + "\n" + termination -- see above. */
530
531	rc = i_updateProcess(pCtx, cbPath);
532	}
533
534	LogFlowFunc(("URI pszPathURI=%s, fHasPath=%RTbool, cbPath=%RU32\n", pszPathURI, fHasPath, cbPath));
535	RTStrFree(pszPathURI);
536	}
537	else
538	rc = VERR_NO_MEMORY;
539	}
540	}
541
542	LogFlowFuncLeaveRC(rc);
543	return rc;
544	}
545
546	int GuestDnDSource::i_onReceiveFileHdr(PRECVDATACTX pCtx, const char *pszPath, uint32_t cbPath,
547	uint64_t cbSize, uint32_t fMode, uint32_t fFlags)
548	{
549	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
550	AssertPtrReturn(pszPath, VERR_INVALID_POINTER);
551	AssertReturn(cbPath, VERR_INVALID_PARAMETER);
552	AssertReturn(fMode, VERR_INVALID_PARAMETER);
553	/* fFlags are optional. */
554
555	LogFlowFunc(("pszPath=%s, cbPath=%RU32, cbSize=%RU64, fMode=0x%x, fFlags=0x%x\n", pszPath, cbPath, cbSize, fMode, fFlags));
556
557	int rc = VINF_SUCCESS;
558
559	do
560	{
561	if (!pCtx->mURI.objURI.IsComplete())
562	{
563	LogFlowFunc(("Warning: Object \"%s\" not complete yet\n", pCtx->mURI.objURI.GetDestPath().c_str()));
564	rc = VERR_INVALID_PARAMETER;
565	break;
566	}
567
568	if (pCtx->mURI.objURI.IsOpen()) /* File already opened? */
569	{
570	LogFlowFunc(("Warning: Current opened object is \"%s\"\n", pCtx->mURI.objURI.GetDestPath().c_str()));
571	rc = VERR_WRONG_ORDER;
572	break;
573	}
574
575	char pszPathAbs[RTPATH_MAX];
576	rc = RTPathJoin(pszPathAbs, sizeof(pszPathAbs), pCtx->mURI.strDropDir.c_str(), pszPath);
577	if (RT_FAILURE(rc))
578	{
579	LogFlowFunc(("Warning: Rebasing current file failed with rc=%Rrc\n", rc));
580	break;
581	}
582
583	rc = DnDPathSanitize(pszPathAbs, sizeof(pszPathAbs));
584	if (RT_FAILURE(rc))
585	{
586	LogFlowFunc(("Warning: Rebasing current file failed with rc=%Rrc\n", rc));
587	break;
588	}
589
590	LogFunc(("Rebased to: %s\n", pszPathAbs));
591
592	/** @todo Add sparse file support based on fFlags? (Use Open(..., fFlags \| SPARSE). */
593	/** @todo Add fMode to opening flags. */
594	rc = pCtx->mURI.objURI.OpenEx(pszPathAbs, DnDURIObject::File, DnDURIObject::Target,
595	RTFILE_O_CREATE_REPLACE \| RTFILE_O_WRITE \| RTFILE_O_DENY_WRITE);
596	if (RT_SUCCESS(rc))
597	{
598	/** @todo Unescpae path before printing. */
599	LogRel2(("DnD: Transferring file to host: %s\n", pCtx->mURI.objURI.GetDestPath().c_str()));
600
601	/* Note: Protocol v1 does not send any file sizes, so always 0. */
602	if (mDataBase.mProtocolVersion >= 2)
603	rc = pCtx->mURI.objURI.SetSize(cbSize);
604
605	if (!cbSize) /* 0-byte file? Close again. */
606	pCtx->mURI.objURI.Close();
607	}
608	else
609	{
610	LogRel2(("DnD: Error opening/creating guest file \"%s\" on host, rc=%Rrc\n",
611	pCtx->mURI.objURI.GetDestPath().c_str(), rc));
612	break;
613	}
614
615	} while (0);
616
617	LogFlowFuncLeaveRC(rc);
618	return rc;
619	}
620
621	int GuestDnDSource::i_onReceiveFileData(PRECVDATACTX pCtx, const void *pvData, uint32_t cbData)
622	{
623	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
624	AssertPtrReturn(pvData, VERR_INVALID_POINTER);
625	AssertReturn(cbData, VERR_INVALID_PARAMETER);
626
627	int rc = VINF_SUCCESS;
628
629	do
630	{
631	if (pCtx->mURI.objURI.IsComplete())
632	{
633	LogFlowFunc(("Warning: Object \"%s\" already completed\n", pCtx->mURI.objURI.GetDestPath().c_str()));
634	rc = VERR_WRONG_ORDER;
635	break;
636	}
637
638	if (!pCtx->mURI.objURI.IsOpen()) /* File opened on host? */
639	{
640	LogFlowFunc(("Warning: Object \"%s\" not opened\n", pCtx->mURI.objURI.GetDestPath().c_str()));
641	rc = VERR_WRONG_ORDER;
642	break;
643	}
644
645	uint32_t cbWritten;
646	rc = pCtx->mURI.objURI.Write(pvData, cbData, &cbWritten);
647	if (RT_SUCCESS(rc))
648	{
649	Assert(cbWritten <= cbData);
650	if (cbWritten < cbData)
651	{
652	/** @todo What to do when the host's disk is full? */
653	rc = VERR_DISK_FULL;
654	}
655
656	if (RT_SUCCESS(rc))
657	rc = i_updateProcess(pCtx, cbWritten);
658	}
659
660	if (RT_SUCCESS(rc))
661	{
662	if (pCtx->mURI.objURI.IsComplete())
663	{
664	/** @todo Sanitize path. */
665	LogRel2(("DnD: File transfer to host complete: %s\n", pCtx->mURI.objURI.GetDestPath().c_str()));
666	rc = VINF_EOF;
667
668	/* Prepare URI object for next use. */
669	pCtx->mURI.objURI.Reset();
670	}
671	}
672	else
673	LogRel(("DnD: Error: Can't write guest file to host to \"%s\": %Rrc\n", pCtx->mURI.objURI.GetDestPath().c_str(), rc));
674
675	} while (0);
676
677	LogFlowFuncLeaveRC(rc);
678	return rc;
679	}
680	#endif /* VBOX_WITH_DRAG_AND_DROP_GH */
681
682	int GuestDnDSource::i_receiveData(PRECVDATACTX pCtx)
683	{
684	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
685
686	GuestDnD *pInst = GuestDnDInst();
687	if (!pInst)
688	return VERR_INVALID_POINTER;
689
690	GuestDnDResponse *pResp = pCtx->mpResp;
691	AssertPtr(pCtx->mpResp);
692
693	ASMAtomicWriteBool(&pCtx->mIsActive, true);
694
695	int rc = pCtx->mCallback.Reset();
696	if (RT_FAILURE(rc))
697	return rc;
698
699	pCtx->mData.vecData.clear();
700	pCtx->mData.cbToProcess = 0;
701	pCtx->mData.cbProcessed = 0;
702
703	do
704	{
705	/* Reset any old data. */
706	pResp->reset();
707	pResp->resetProgress(m_pGuest);
708
709	/* Set the format we are going to retrieve to have it around
710	* when retrieving the data later. */
711	pResp->setFormat(pCtx->mFormat);
712
713	bool fHasURIList = DnDMIMENeedsDropDir(pCtx->mFormat.c_str(), pCtx->mFormat.length());
714	LogFlowFunc(("strFormat=%s, uAction=0x%x, fHasURIList=%RTbool\n", pCtx->mFormat.c_str(), pCtx->mAction, fHasURIList));
715
716	if (fHasURIList)
717	{
718	rc = i_receiveURIData(pCtx);
719	}
720	else
721	{
722	rc = i_receiveRawData(pCtx);
723	}
724
725	} while (0);
726
727	ASMAtomicWriteBool(&pCtx->mIsActive, false);
728
729	LogFlowFuncLeaveRC(rc);
730	return rc;
731	}
732
733	/* static */
734	DECLCALLBACK(int) GuestDnDSource::i_receiveDataThread(RTTHREAD Thread, void *pvUser)
735	{
736	LogFlowFunc(("pvUser=%p\n", pvUser));
737
738	RecvDataTask pTask = (RecvDataTask )pvUser;
739	AssertPtrReturn(pTask, VERR_INVALID_POINTER);
740
741	const ComObjPtr<GuestDnDSource> pSource(pTask->getSource());
742	Assert(!pSource.isNull());
743
744	int rc;
745
746	AutoCaller autoCaller(pSource);
747	if (SUCCEEDED(autoCaller.rc()))
748	{
749	rc = pSource->i_receiveData(pTask->getCtx());
750	}
751	else
752	rc = VERR_COM_INVALID_OBJECT_STATE;
753
754	LogFlowFunc(("pSource=%p returning rc=%Rrc\n", (GuestDnDSource *)pSource, rc));
755
756	if (pTask)
757	delete pTask;
758	return rc;
759	}
760
761	int GuestDnDSource::i_receiveRawData(PRECVDATACTX pCtx)
762	{
763	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
764
765	int rc;
766
767	GuestDnDResponse *pResp = pCtx->mpResp;
768	AssertPtr(pCtx->mpResp);
769
770	GuestDnD *pInst = GuestDnDInst();
771	if (!pInst)
772	return VERR_INVALID_POINTER;
773
774	#define REGISTER_CALLBACK(x) \
775	rc = pResp->setCallback(x, i_receiveRawDataCallback, pCtx); \
776	if (RT_FAILURE(rc)) \
777	return rc;
778
779	#define UNREGISTER_CALLBACK(x) \
780	rc = pCtx->mpResp->setCallback(x, NULL); \
781	AssertRC(rc);
782
783	/*
784	* Register callbacks.
785	*/
786	REGISTER_CALLBACK(DragAndDropSvc::GUEST_DND_GH_EVT_ERROR);
787	REGISTER_CALLBACK(DragAndDropSvc::GUEST_DND_GH_SND_DATA);
788
789	do
790	{
791	/*
792	* Receive the raw data.
793	*/
794	GuestDnDMsg Msg;
795	Msg.setType(DragAndDropSvc::HOST_DND_GH_EVT_DROPPED);
796	Msg.setNextPointer((void*)pCtx->mFormat.c_str(), (uint32_t)pCtx->mFormat.length() + 1);
797	Msg.setNextUInt32((uint32_t)pCtx->mFormat.length() + 1);
798	Msg.setNextUInt32(pCtx->mAction);
799
800	/* Make the initial call to the guest by telling that we initiated the "dropped" event on
801	* the host and therefore now waiting for the actual raw data. */
802	rc = pInst->hostCall(Msg.getType(), Msg.getCount(), Msg.getParms());
803	if (RT_SUCCESS(rc))
804	{
805	/*
806	* Wait until our callback i_receiveRawDataCallback triggered the
807	* wait event.
808	*/
809	LogFlowFunc(("Waiting for raw data callback ...\n"));
810	rc = pCtx->mCallback.Wait(RT_INDEFINITE_WAIT);
811	LogFlowFunc(("Raw callback done, rc=%Rrc\n", rc));
812	}
813
814	} while (0);
815
816	/*
817	* Unregister callbacks.
818	*/
819	UNREGISTER_CALLBACK(DragAndDropSvc::GUEST_DND_GH_EVT_ERROR);
820	UNREGISTER_CALLBACK(DragAndDropSvc::GUEST_DND_GH_SND_DATA);
821
822	#undef REGISTER_CALLBACK
823	#undef UNREGISTER_CALLBACK
824
825	LogFlowFuncLeaveRC(rc);
826	return rc;
827	}
828
829	int GuestDnDSource::i_receiveURIData(PRECVDATACTX pCtx)
830	{
831	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
832
833	int rc;
834
835	GuestDnDResponse *pResp = pCtx->mpResp;
836	AssertPtr(pCtx->mpResp);
837
838	GuestDnD *pInst = GuestDnDInst();
839	if (!pInst)
840	return VERR_INVALID_POINTER;
841
842	#define REGISTER_CALLBACK(x) \
843	rc = pResp->setCallback(x, i_receiveURIDataCallback, pCtx); \
844	if (RT_FAILURE(rc)) \
845	return rc;
846
847	#define UNREGISTER_CALLBACK(x) \
848	rc = pResp->setCallback(x, NULL); \
849	AssertRC(rc);
850
851	/*
852	* Register callbacks.
853	*/
854	/* Guest callbacks. */
855	REGISTER_CALLBACK(DragAndDropSvc::GUEST_DND_GH_EVT_ERROR);
856	REGISTER_CALLBACK(DragAndDropSvc::GUEST_DND_GH_SND_DATA);
857	REGISTER_CALLBACK(DragAndDropSvc::GUEST_DND_GH_SND_DIR);
858	if (mDataBase.mProtocolVersion >= 2)
859	REGISTER_CALLBACK(DragAndDropSvc::GUEST_DND_GH_SND_FILE_HDR);
860	REGISTER_CALLBACK(DragAndDropSvc::GUEST_DND_GH_SND_FILE_DATA);
861
862	do
863	{
864	char szDropDir[RTPATH_MAX];
865	rc = DnDDirCreateDroppedFiles(szDropDir, sizeof(szDropDir));
866	LogFlowFunc(("rc=%Rrc, szDropDir=%s\n", rc, szDropDir));
867	if (RT_FAILURE(rc))
868	break;
869
870	pCtx->mURI.strDropDir = szDropDir; /** @todo Keep directory handle open? */
871
872	/*
873	* Receive the URI list.
874	*/
875	GuestDnDMsg Msg;
876	Msg.setType(DragAndDropSvc::HOST_DND_GH_EVT_DROPPED);
877	Msg.setNextPointer((void*)pCtx->mFormat.c_str(), (uint32_t)pCtx->mFormat.length() + 1);
878	Msg.setNextUInt32((uint32_t)pCtx->mFormat.length() + 1);
879	Msg.setNextUInt32(pCtx->mAction);
880
881	/* Make the initial call to the guest by telling that we initiated the "dropped" event on
882	* the host and therefore now waiting for the actual URI actual data. */
883	rc = pInst->hostCall(Msg.getType(), Msg.getCount(), Msg.getParms());
884	if (RT_SUCCESS(rc))
885	{
886	/*
887	* Wait until our callback i_receiveURIDataCallback triggered the
888	* wait event.
889	*/
890	LogFlowFunc(("Waiting for URI callback ...\n"));
891	rc = pCtx->mCallback.Wait(RT_INDEFINITE_WAIT);
892	LogFlowFunc(("URI callback done, rc=%Rrc\n", rc));
893	}
894
895	} while (0);
896
897	/*
898	* Unregister callbacks.
899	*/
900	UNREGISTER_CALLBACK(DragAndDropSvc::GUEST_DND_GH_EVT_ERROR);
901	UNREGISTER_CALLBACK(DragAndDropSvc::GUEST_DND_GH_SND_DATA);
902	UNREGISTER_CALLBACK(DragAndDropSvc::GUEST_DND_GH_SND_DIR);
903	if (mDataBase.mProtocolVersion >= 2)
904	UNREGISTER_CALLBACK(DragAndDropSvc::GUEST_DND_GH_SND_FILE_HDR);
905	UNREGISTER_CALLBACK(DragAndDropSvc::GUEST_DND_GH_SND_FILE_DATA);
906
907	#undef REGISTER_CALLBACK
908	#undef UNREGISTER_CALLBACK
909
910	if (RT_FAILURE(rc))
911	{
912	LogFlowFunc(("Rolling back ...\n"));
913
914	/* Rollback by removing any stuff created. */
915	for (size_t i = 0; i < pCtx->mURI.lstFiles.size(); ++i)
916	RTFileDelete(pCtx->mURI.lstFiles.at(i).c_str());
917	for (size_t i = 0; i < pCtx->mURI.lstDirs.size(); ++i)
918	RTDirRemove(pCtx->mURI.lstDirs.at(i).c_str());
919	}
920
921	/* Try removing (hopefully) empty drop directory in any case. */
922	if (pCtx->mURI.strDropDir.isNotEmpty())
923	RTDirRemove(pCtx->mURI.strDropDir.c_str());
924
925	LogFlowFuncLeaveRC(rc);
926	return rc;
927	}
928
929	/* static */
930	DECLCALLBACK(int) GuestDnDSource::i_receiveRawDataCallback(uint32_t uMsg, void pvParms, size_t cbParms, void pvUser)
931	{
932	PRECVDATACTX pCtx = (PRECVDATACTX)pvUser;
933	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
934
935	GuestDnDSource *pThis = pCtx->mpSource;
936	AssertPtrReturn(pThis, VERR_INVALID_POINTER);
937
938	LogFlowFunc(("pThis=%p, uMsg=%RU32\n", pThis, uMsg));
939
940	int rc = VINF_SUCCESS;
941	bool fNotify = false;
942
943	switch (uMsg)
944	{
945	#ifdef VBOX_WITH_DRAG_AND_DROP_GH
946	case DragAndDropSvc::GUEST_DND_GH_SND_DATA:
947	{
948	DragAndDropSvc::PVBOXDNDCBSNDDATADATA pCBData = reinterpret_cast<DragAndDropSvc::PVBOXDNDCBSNDDATADATA>(pvParms);
949	AssertPtr(pCBData);
950	AssertReturn(sizeof(DragAndDropSvc::VBOXDNDCBSNDDATADATA) == cbParms, VERR_INVALID_PARAMETER);
951	AssertReturn(DragAndDropSvc::CB_MAGIC_DND_GH_SND_DATA == pCBData->hdr.u32Magic, VERR_INVALID_PARAMETER);
952
953	rc = pThis->i_onReceiveData(pCtx, pCBData->pvData, pCBData->cbData, pCBData->cbTotalSize);
954	break;
955	}
956	case DragAndDropSvc::GUEST_DND_GH_EVT_ERROR:
957	{
958	DragAndDropSvc::PVBOXDNDCBEVTERRORDATA pCBData = reinterpret_cast<DragAndDropSvc::PVBOXDNDCBEVTERRORDATA>(pvParms);
959	AssertPtr(pCBData);
960	AssertReturn(sizeof(DragAndDropSvc::VBOXDNDCBEVTERRORDATA) == cbParms, VERR_INVALID_PARAMETER);
961	AssertReturn(DragAndDropSvc::CB_MAGIC_DND_GH_EVT_ERROR == pCBData->hdr.u32Magic, VERR_INVALID_PARAMETER);
962
963	pCtx->mpResp->reset();
964	rc = pCtx->mpResp->setProgress(100, DragAndDropSvc::DND_PROGRESS_ERROR, pCBData->rc);
965	if (RT_SUCCESS(rc))
966	rc = pCBData->rc;
967	break;
968	}
969	#endif /* VBOX_WITH_DRAG_AND_DROP_GH */
970	default:
971	rc = VERR_NOT_SUPPORTED;
972	break;
973	}
974
975	if (RT_FAILURE(rc))
976	fNotify = true;
977
978	if (fNotify)
979	{
980	int rc2 = pCtx->mCallback.Notify(rc);
981	AssertRC(rc2);
982	}
983
984	LogFlowFuncLeaveRC(rc);
985	return rc; /* Tell the guest. */
986	}
987
988	/* static */
989	DECLCALLBACK(int) GuestDnDSource::i_receiveURIDataCallback(uint32_t uMsg, void pvParms, size_t cbParms, void pvUser)
990	{
991	PRECVDATACTX pCtx = (PRECVDATACTX)pvUser;
992	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
993
994	GuestDnDSource *pThis = pCtx->mpSource;
995	AssertPtrReturn(pThis, VERR_INVALID_POINTER);
996
997	LogFlowFunc(("pThis=%p, uMsg=%RU32\n", pThis, uMsg));
998
999	int rc = VINF_SUCCESS;
1000	bool fNotify = false;
1001
1002	switch (uMsg)
1003	{
1004	#ifdef VBOX_WITH_DRAG_AND_DROP_GH
1005	case DragAndDropSvc::GUEST_DND_GH_SND_DATA:
1006	{
1007	DragAndDropSvc::PVBOXDNDCBSNDDATADATA pCBData = reinterpret_cast<DragAndDropSvc::PVBOXDNDCBSNDDATADATA>(pvParms);
1008	AssertPtr(pCBData);
1009	AssertReturn(sizeof(DragAndDropSvc::VBOXDNDCBSNDDATADATA) == cbParms, VERR_INVALID_PARAMETER);
1010	AssertReturn(DragAndDropSvc::CB_MAGIC_DND_GH_SND_DATA == pCBData->hdr.u32Magic, VERR_INVALID_PARAMETER);
1011
1012	rc = pThis->i_onReceiveData(pCtx, pCBData->pvData, pCBData->cbData, pCBData->cbTotalSize);
1013	break;
1014	}
1015	case DragAndDropSvc::GUEST_DND_GH_SND_DIR:
1016	{
1017	DragAndDropSvc::PVBOXDNDCBSNDDIRDATA pCBData = reinterpret_cast<DragAndDropSvc::PVBOXDNDCBSNDDIRDATA>(pvParms);
1018	AssertPtr(pCBData);
1019	AssertReturn(sizeof(DragAndDropSvc::VBOXDNDCBSNDDIRDATA) == cbParms, VERR_INVALID_PARAMETER);
1020	AssertReturn(DragAndDropSvc::CB_MAGIC_DND_GH_SND_DIR == pCBData->hdr.u32Magic, VERR_INVALID_PARAMETER);
1021
1022	rc = pThis->i_onReceiveDir(pCtx, pCBData->pszPath, pCBData->cbPath, pCBData->fMode);
1023	break;
1024	}
1025	case DragAndDropSvc::GUEST_DND_GH_SND_FILE_HDR:
1026	{
1027	DragAndDropSvc::PVBOXDNDCBSNDFILEHDRDATA pCBData = reinterpret_cast<DragAndDropSvc::PVBOXDNDCBSNDFILEHDRDATA>(pvParms);
1028	AssertPtr(pCBData);
1029	AssertReturn(sizeof(DragAndDropSvc::VBOXDNDCBSNDFILEHDRDATA) == cbParms, VERR_INVALID_PARAMETER);
1030	AssertReturn(DragAndDropSvc::CB_MAGIC_DND_GH_SND_FILE_HDR == pCBData->hdr.u32Magic, VERR_INVALID_PARAMETER);
1031
1032	rc = pThis->i_onReceiveFileHdr(pCtx, pCBData->pszFilePath, pCBData->cbFilePath,
1033	pCBData->cbSize, pCBData->fMode, pCBData->fFlags);
1034	break;
1035	}
1036	case DragAndDropSvc::GUEST_DND_GH_SND_FILE_DATA:
1037	{
1038	DragAndDropSvc::PVBOXDNDCBSNDFILEDATADATA pCBData = reinterpret_cast<DragAndDropSvc::PVBOXDNDCBSNDFILEDATADATA>(pvParms);
1039	AssertPtr(pCBData);
1040	AssertReturn(sizeof(DragAndDropSvc::VBOXDNDCBSNDFILEDATADATA) == cbParms, VERR_INVALID_PARAMETER);
1041	AssertReturn(DragAndDropSvc::CB_MAGIC_DND_GH_SND_FILE_DATA == pCBData->hdr.u32Magic, VERR_INVALID_PARAMETER);
1042
1043	if (pThis->mDataBase.mProtocolVersion <= 1)
1044	{
1045	/**
1046	* Notes for protocol v1 (< VBox 5.0):
1047	* - Every time this command is being sent it includes the file header,
1048	* so just process both calls here.
1049	* - There was no information whatsoever about the total file size; the old code only
1050	* appended data to the desired file. So just pass 0 as cbSize.
1051	*/
1052	rc = pThis->i_onReceiveFileHdr(pCtx,
1053	pCBData->u.v1.pszFilePath, pCBData->u.v1.cbFilePath,
1054	0 /* cbSize /, pCBData->u.v1.fMode, 0 / fFlags */);
1055	if (RT_SUCCESS(rc))
1056	rc = pThis->i_onReceiveFileData(pCtx, pCBData->pvData, pCBData->cbData);
1057	}
1058	else /* Protocol v2 and up. */
1059	rc = pThis->i_onReceiveFileData(pCtx, pCBData->pvData, pCBData->cbData);
1060	break;
1061	}
1062	case DragAndDropSvc::GUEST_DND_GH_EVT_ERROR:
1063	{
1064	DragAndDropSvc::PVBOXDNDCBEVTERRORDATA pCBData = reinterpret_cast<DragAndDropSvc::PVBOXDNDCBEVTERRORDATA>(pvParms);
1065	AssertPtr(pCBData);
1066	AssertReturn(sizeof(DragAndDropSvc::VBOXDNDCBEVTERRORDATA) == cbParms, VERR_INVALID_PARAMETER);
1067	AssertReturn(DragAndDropSvc::CB_MAGIC_DND_GH_EVT_ERROR == pCBData->hdr.u32Magic, VERR_INVALID_PARAMETER);
1068
1069	pCtx->mpResp->reset();
1070	rc = pCtx->mpResp->setProgress(100, DragAndDropSvc::DND_PROGRESS_ERROR, pCBData->rc);
1071	if (RT_SUCCESS(rc))
1072	rc = pCBData->rc;
1073	break;
1074	}
1075	#endif /* VBOX_WITH_DRAG_AND_DROP_GH */
1076	default:
1077	rc = VERR_NOT_SUPPORTED;
1078	break;
1079	}
1080
1081	if (RT_FAILURE(rc))
1082	fNotify = true;
1083
1084	/* All URI data processed? */
1085	if (pCtx->mData.cbProcessed >= pCtx->mData.cbToProcess)
1086	{
1087	Assert(pCtx->mData.cbProcessed == pCtx->mData.cbToProcess);
1088	fNotify = true;
1089	}
1090
1091	LogFlowFunc(("cbProcessed=%RU64, cbToProcess=%RU64, fNotify=%RTbool\n",
1092	pCtx->mData.cbProcessed, pCtx->mData.cbToProcess, fNotify));
1093
1094	if (fNotify)
1095	{
1096	int rc2 = pCtx->mCallback.Notify(rc);
1097	AssertRC(rc2);
1098	}
1099
1100	LogFlowFuncLeaveRC(rc);
1101	return rc; /* Tell the guest. */
1102	}
1103
1104	int GuestDnDSource::i_updateProcess(PRECVDATACTX pCtx, uint32_t cbDataAdd)
1105	{
1106	AssertPtrReturn(pCtx, VERR_INVALID_POINTER);
1107
1108	pCtx->mData.cbProcessed += cbDataAdd;
1109	Assert(pCtx->mData.cbProcessed <= pCtx->mData.cbToProcess);
1110
1111	int64_t cbTotal = pCtx->mData.cbToProcess;
1112	uint8_t uPercent = pCtx->mData.cbProcessed * 100 / (cbTotal ? cbTotal : 1);
1113
1114	int rc = pCtx->mpResp->setProgress(uPercent,
1115	uPercent >= 100
1116	? DragAndDropSvc::DND_PROGRESS_COMPLETE
1117	: DragAndDropSvc::DND_PROGRESS_RUNNING);
1118	return rc;
1119	}
1120

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source: vbox/trunk/src/VBox/Main/src-client/GuestDnDSourceImpl.cpp@ 55535

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